Also known as HD 45813, Al Ḳurūd, HIP 30788, HIC 30788, HR 2361, λ Canis Majoris, λ CMa, ROT 1047
star in the constellation Canis Major
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- B4V
- Distance
- 440 light-years
- Redshift
- z = 0.00013677063213402008
- Coordinates
- RA 97.0425° · Dec -32.5801°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Canis Major
- Distance from Earth
- 120.9804
- Radius
- 2.56
Show 14 more facts
- catalog code
- UBV M 12151
- spectral class
- B5
- apparent magnitude
- 4.909
- parallax
- 8.03
- right ascension
- 97.04253113375
- declination
- -32.58006819111
- effective temperature
- 18800
- stellar rotational velocity
- 138
- radial velocity
- 40.0
- epoch
- J2000.0
- luminosity
- 560
- absolute magnitude
- -0.85
- right ascension component of proper motion
- -24
- declination component of proper motion
- 23
Sources (2)
via Wikidata · CC0
Article · 中文
孫增二（大犬座λ）是大犬座中一顆藍白色調的單獨恆星。孫增二的視星等是+4.48，在無光害的場所可以用裸眼看見。根據從地球觀察到的恆星視差7.70 ，它與太陽的距離為424光年。由於星際塵埃的消光，在這樣的距離上它的視亮度會降低0.14等。 這是一顆恆星光譜為B4V的B型主序星。估計它的年齡是4,000萬年，恆星的投影旋轉速度為102公里/秒。它的質量是5.7太陽質量，亮度是太陽亮度的560倍，表面的有效溫度為16,300K。
Abstract from DBpedia / Wikipedia · CC BY-SA